V30 means the card sustains continuous recording at 30 MB/s or more, and writes of up to 90 MB/s leave room for fast photo bursts too. The manufacturer describes the card for 4K UHD and Full HD video and high-resolution photos. Check the UHS class on the packaging, as the supplier data and the manufacturer description differ.
With an A2 card, apps launch faster on an Android phone. For reads of up to 160 MB/s the manufacturer recommends the SanDisk MobileMate USB 3.0 reader; in its example, 1000 photos and 30 minutes of 4K video (24 GB) transfer in under 3 minutes.
The card is for action camera and drone users who film in 4K, and for Android phone owners who want to keep apps on the card. The rugged build helps when a camera gets wet on a hike or is left in a hot car.
| Brand | SANDISK |
|---|---|
| Product colour | Red |
| EAN | 619659188504 |
| Internal memory type | UHS-I |
|---|
| Capacity | 256 |
|---|---|
| Storage temperature (T-T) | -40 - 85 |
| Flash card type | MicroSDXC |
|---|---|
| Flash memory class | Class 3 |
| Memory adapter included | microSD |
|---|
| Operating temperature (T-T) | 0 – 25 – 85 °C |
|---|---|
| Read speed | 160 |
| Write speed | 90 |
| UHS Speed Class | Class 1 (U1) |
| Video Speed Class | V30 |
| Width | 32 mm |
|---|---|
| Depth | 2.1 mm |
| Height | 2.4 mm |
A V30 or U3 card is generally recommended for 4K. This card is rated V30, and the manufacturer describes it for 4K UHD recording.
The supplier data says U1, the manufacturer description says U3. The exact class is printed on the card or its packaging.
A2 is an application performance class: the phone opens and runs apps installed on the card faster.
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